I am selling this item because it is the same as one I already own. I only tested it once and have not used it. I have three sets of the product (2 per set), so you can purchase them all together. (2x3 = 6) The SwitchBot smart bulb connects via Bluetooth and allows for colorful color adjustments, as well as brightness and color temperature adjustments. - Brand: SwitchBot - Model: Smart Bulb - Function: Bluetooth connection - Features: Colorful color adjustment - Application: Smart Home - Dimming Function: Brightness adjustment - Color Adjustment Function: Color temperature adjustment Thank you for looking.